Thunderbird: jsconsole is broken

The jsconsole (Crtl-Shift-j) stays empty all the time and I can’t enable/disable categories. Also, running thunderbird --jsconsole does not help to have a useful jsconsole.

according to intrigeri: “anonym confirmed that what you’ve seen (and what I see) is not the expected behavior of the JS console (even if there’s no log to show at all). anonym has tried and reproduced this bug. He says he was using that console in Tails in the past and back then it was working”

Related issues

Related to #15661 (closed)
Related to #16422 (closed)

Original created by @Hefee on 16529 (Redmine)

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